Stroller Folding Joint With Rotating Base and Auto-Unlocking Lock
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Solution Overview
Problem
Conventional strollers face issues with connecting assemblies that do not fold with the stroller frame during the folding process, resulting in a less compact design or requiring separate disassembly for storage.
Innovation Solution
A folding device with a pivot joint mechanism, rotating base, and locking assembly that allows the connecting assembly to rotate unidirectionally relative to the pivot joint mechanism, enabling automatic further folding by switching between locking and unlocking positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the connecting assembly is not integrated with the folding mechanism, then the structure is simpler, but the folding compactness deteriorates
Solution Approach 1:
The patent combines the connecting assembly with the folding mechanism by integrating the rotating base into the pivot joint mechanism. The connecting assembly is positioned on the rotating base, which is pivotally connected to the pivot joint mechanism, allowing the connecting assembly to fold together with the stroller frame automatically without requiring separate disassembly.
Solution Approach 2:
The patent introduces a locking assembly that can switch between locked and unlocked states dynamically. During folding, the locking assembly transitions from locked to unlocked, allowing the rotating base to rotate relative to the pivot joint mechanism. This dynamic behavior enables the connecting assembly to adapt its position during folding while maintaining structural integrity.
2Volume of moving object
If the connecting assembly folds with the stroller frame, then the folding compactness is improved, but the device complexity increases
Solution Approach 1:
The patent divides the folding mechanism into distinct functional components: the pivot joint mechanism, the rotating base, and the locking assembly. Each component has a specific function - the pivot joint mechanism provides the folding motion, the rotating base carries the connecting assembly, and the locking assembly controls the rotation. This segmentation allows the complex folding function to be achieved through coordinated simple components.
Solution Approach 2:
The locking assembly is designed to automatically transition between locked and unlocked states based on the folding motion. When the pivot joint mechanism folds, it automatically drives the locking assembly to unlock, allowing the rotating base to rotate. This self-service mechanism eliminates the need for additional control systems or manual intervention.
3Stability of the object's composition
If the locking assembly restricts rotation, then the structural stability is improved, but the folding operation becomes more complex
Solution Approach 1:
The locking assembly operates periodically - locked during normal use to provide stability, and unlocked during folding to allow rotation. The pivot joint mechanism automatically triggers the unlocking action during the folding motion, and the locking assembly returns to the locked state when folding is complete. This periodic action ensures both stability and ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a simple structure for automatic further folding, improving operational convenience and compactness by ensuring the connecting assembly rotates in a controlled manner during stroller folding.
Implementation Method 1
an elastic force of the first elastic member provides the rotating base with a movement tendency to rotate in the first rotating direction
Data Source
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AI summary
A folding device (100) and a stroller (10) are provided. The folding device includes a pivot joint mechanism (14), a rotating base (120), and a locking assembly (150). The pivot joint mechanism is provided with a driving member (111) and is switchable between an unfolded state and a folded state. The rotating base is pivotally connected to the pivot joint mechanism. The rotating base is provided with a driven portion (121). The locking assembly is movably connected to the pivot joint mechanism or the rotating base. The locking assembly has a locking position and an unlocking position. When the pivot joint mechanism switches from the unfolded state to the folded state, the pivot joint mechanism drives the locking assembly to move from the locking position to the unlocking position, and when the locking assembly is in the unlocking position, the driving member drives the driven portion to move to cause the rotating base to rotate.